体外循环用离心血泵磁力联轴器的磁场数值计算与分析  

Magnetic Field Numerical Calculation and Analysis for Magnetic Coupling of Centrifugal Blood Pump for Extracorporeal Circulation

作　　者：胡兆燕[1,2,3] 路力军[1] 张天逸 陈正龙 张涛[1] 

机构地区：[1]上海理工大学机械工程学院,上海200093 [2]上海理工大学医疗器械与食品学院,上海200093 [3]上海医疗器械高等专科学校医疗器械工程系,上海200093

出　　处：《生物医学工程学杂志》2013年第6期1244-1249,共6页Journal of Biomedical Engineering

基　　金：上海市教委科研创新资助项目(12YZ196);上海市高校青年教师培养计划资助项目(slg11054)

摘　　要：体外循环用离心血泵的驱动系统,其核心为圆盘形磁力联轴器。圆盘形磁力联轴器的结构参数关系到传递磁转矩的能力,因此需要对圆盘形磁力联轴器的永磁体磁极数(n)、气隙长度(Lg)、永磁体厚度(Lm)、永磁体内径(Ri)及外径(Ro)等参数进行深入研究。本文采用Ansys三维静态磁场棱边单元法进行数值计算,分析磁力联轴器各个参数与传递磁转矩的关系,为圆盘形磁力联轴器的进一步优化提供了理论依据和计算方法。This paper mainly studies the driving system of centrifugal blood pump for extracorporeal circulation, with the core being disc magnetic coupling. Structure parameters of disc magnetic coupling are related to the ability of transferring magnetic torque. Therefore, it is necessary to carry out disc magnetic coupling permanent magnet pole number （n）, air gap length , permanent magnet thickness , permanent magnet body inside diameter （Ri） and outside diameter （Ro）, etc. thoroughly. This paper adopts the three-dimensional static magnetic field edge ele ment method of Ansys for numerical calculation, and analyses the relations of magnetic coupling each parameter to transmission magnetic torque. It provides a good theory basis and calculation method for further optimization of the disc magnetic coupling.

关 键 词：离心血泵 圆盘形磁力联轴器 磁转矩 有限元分析 

分 类 号：TH777[机械工程—仪器科学与技术] TH133.4[机械工程—精密仪器及机械]